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    PCIe 4.0 x16 to x8x8 Bifurcation Split Expansion Card, Gen4 1-to-2 PCI-E Splitter with 20mm Slot Spacing & SATA CPU 4Pin Aux Power Port for GPU, Capture & Network Cards

    • Full PCIe 4.0 Gen4 Bifurcation Split: Single x16 lane splits into two independent x8 channels, backward compatible with PCIe 3.0; delivers complete bandwidth without performance loss
    • 20mm Standard Slot Gap: Extra clearance between dual PCIe slots prevents collision of GPU heatsinks, cooling fans and metal brackets
    • SATA CPU 4Pin Aux Power Interface: Supplementary stable 12V power supply eliminates voltage drop and system crash under dual high-load PCIe devices
    • Independent Clock Split IC: Built-in dedicated clock controller ensures stable simultaneous operation of two expansion cards; power LED indicator for real-time status check
    • Wide Cross-Device Compatibility: Supports graphics cards, 4K/8K video capture cards, 10G/25G network adapters, RAID controllers and all standard PCIe x8/x16 peripherals
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    This PCIe 4.0 x16 bifurcation split expansion card converts one motherboard PCIe x16 slot into two separate x8 PCIe interfaces, perfectly solving insufficient native PCIe expansion ports on workstations, editing hosts and servers.

    Fully compliant with PCI Express 4.0 Gen4 specification, it maintains full transmission bandwidth and supports downward adaptation to PCIe 3.0 hardware. Important Precondition: Your motherboard BIOS must enable PCIe bifurcation function and switch lane split mode to x8x8 to activate dual-channel full performance.

    Two PCIe slots adopt optimized 20mm spacing design, reserving enough installation space for large-size GPU radiators without physical interference between dual expansion hardware. Equipped with a SATA-powered CPU 4Pin auxiliary power port, it supplies extra steady power to avoid overload shutdown when running two high-power PCIe devices at full load.

    Adopting thick gold-plated fingers, the card effectively reduces oxidation and signal attenuation for 24/7 continuous heavy-duty operation. Built-in power indicator LED allows you to quickly judge working status at a glance.

    Widely applied to dual-GPU rendering rigs, multi-channel video recording workstations, multi-port network servers and industrial control expansion equipment. Just finish BIOS bifurcation configuration before use, a high-performance PCIe lane expansion accessory for content creators, server builders and DIY hardware enthusiasts.


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